LED canopy light fixture

• US 20070151274A1
• Filed: 12/30/2005
• Published: 07/05/2007
• Est. Priority Date: 12/30/2005
• Status: Active Grant

• Current Assignee: Hussmann Corporation (Panasonic Holdings Corporation)
• Original Assignee: Hussmann Corporation (Panasonic Holdings Corporation)
• Inventors: Madireddi, Sesha, Roche, John
• Granted Patent: US 8,490,424 B2
• Time in Patent Office: Days
• US Class Current: 62/246
• CPC Class Codes: A47F 3/0469 Details, e.g. night covers

Abstract

A refrigerated display case for maintaining food product at a desired temperature includes a product display area adapted to support and to display the food product such that the food product is accessible from the front of the case through an opening. An interior top wall is positioned above the product display area and includes an outlet adjacent the opening. An air passageway internal to the case and in fluid communication with the outlet permits refrigerated air from a refrigeration system to be supplied to the product display area through the outlet. The air discharged from the outlet defines an air curtain adapted to maintain the food product at the desired temperature. A light source is disposed adjacent the interior top wall and inside the air curtain and is adapted to illuminate the food product within the product display area.

Claims

1. A refrigerated display case for maintaining food product at a desired temperature, the refrigerated display case comprising:

a product display area adapted to support and to display the food product such that the food product is accessible from the front of the case through an opening,

an interior top wall positioned above the product display area, the interior top wall including an outlet adjacent the opening, and

an air passageway internal to the case and in fluid communication with the outlet;

a refrigeration system for cooling air within the air passageway and supplying the refrigerated air to the product display area through the outlet, the air discharged from the outlet defining an air curtain adapted to maintain the food product at the desired temperature; and

a light source disposed adjacent the interior top wall and interior of the air curtain, the light source adapted to illuminate the food product within the product display area.

2. The refrigerated display case of claim 1, wherein the light source is positioned adjacent the opening.

3. The refrigerated display case of claim 1, further comprising at least one shelving unit coupled to the case to support and to display some of the food product within the product display area, a light source supported by the shelving unit, wherein the light source illuminates other food product.

4. The refrigerated display case of claim 3, wherein the light source is a light emitting diode (LED).

5. The refrigerated display case of claim 4, wherein the LED light source is a 20-Watt or less light source.

6. The refrigerated display case of claim 4, wherein the LED light source is adjacent to an end of the shelving unit nearest an opening in the front of the case.

7. The refrigerated display case of claim 6, wherein the LED light source is positioned below the end of the shelving unit.

8. The refrigerated display case of claim 1, wherein the light source is a light emitting diode (LED) light source.

9. The refrigerated display case of claim 8, further comprising a louver disposed across the outlet.

10. The refrigerated display case of claim 9, wherein the louver and a bottom surface of the interior top wall form a corner, wherein the LED light source is positioned within the corner.

11. The refrigerated display case of claim 8, wherein the LED light source is a 20-Watt or less light source.